Carriage-axle nut.



No. 713,171. I PATENTEE 'JAN.13, 1903. N. TEBO E T. E. EEENGE.

CARRIAGE AXLE NUT. i APPL-IGA'TION FILED SEPT. 5, 1901.

'mc uonms PETERS oo.. mam-uma.. w/snmm'on. D. c.

NITED STATES PATENT OFFICE.

NAPOLEON TEBO AND THEODORE B. FRENCH, OF GRAFTON, MASSACHUSETTS.

CARRIAG E-AXLE NUT.

SPECIFICATION forming part of Letters Patent No. 718,171 dated January13, 1903 Application iilcd Septcmherllgl. Serial No. 74,439. (No model.)

To a/ZZ whom t may concern.-

Be it known that we, NAPOLEON TEBO and THEODOEE B. FRENCH, citizens ofthe United States, residing at Grafton, in the county of Worcester andState of Massachusetts, have invented a new and useful Carriage-AxleNut, of which the following is a specification.V

This invention relates to an `attachment for carriageaxles which isdesigned to provide means for tightening the washers employed at the endof wheel-hubs. A

The especial object of this invention is to provide a simple, efficient,strong, and inexpensive attachment for carriage-axles, which can beapplied to carriage-axles which are alreadyin use and which will affordmeans for tightening the Washers, and which will have a wide range ofadjustment, so that comparatively thin Washers may be employed, evenwhen the wheel-hub is shortened or worn down to a considerable extent. A

To these ends this invention consists of the axle attachment and of thecombinations of an axle therewith, as hereinafter described, and moreparticularly pointed out in the claim at the end of this specification.

In the accompanying drawings, Figure l is a sectional view of awheel-hub, showing an attachment constructed according toV thisinvention applied to the axle thereof. Fig. 2 is a perspective view ofthe bushing which is threaded onto the end of the axle. Fig;` 8 is aperspective View of.' the look-nut for holding the parts in theiradjusted position. Fig. 4 is a perspective View of the washer-retainingnut, and Fig. 5 is a perspective view of the leather washer.

In ordinary carriage-wheel construction the wheel is usually held inplace by a single nut, which is threaded onto the end of the axle witharight-hand or left-hand screw-thread,`

worn comparatively thin or when the ends of the wheel-hub itself areworn out to a con,-

siderable extent, it frequently happens that a washer of undesirablethickness or two Or more Washers have to be employed on the outersiderofthe wheel. The use of thick `leather washers or of two or morewasherstogether is objectionable because of not providing a firm end bearingfor the wheel and on account of the liability to shrink or swell,according tothe amount-Of oil which is used on the axle. A

The especial object of the present invention is therefore to provide anattachment for carriage-axles which will permit of an adjustment, so asto avoid rewashering the wheel at the frequent intervals now required,and which will permit the use of comparatively thin Washers even whenthe ends of the Wheelhub are more or less worn.

Referring to the accompanying drawings and in detail, as shown in Fig.l, A designates an ordinary Wheel-hub, which is provided with a metalbushing B. Extending through the hub is an ordinary carriage-axle C,having collars for holding the inner Washer E in place and for forming agroove for retaining oil. At its outer end the axle C is provided with athreaded section F, and these parts may be of ordinary or approvedconstruction and need not be herein described at length.

An attachment for an ordinary carriageaxle constructed according to thisinvention comprises a bushing 10, which isthreaded onto the end of theaxle C. As illustrated most clearly in Fig. 2, the bushing 10 isprovided with a wrench-section l1 and with oppositely-threaded sections12 and 13.

As shown most clearly in Fig. l, the outside diameter of the bushing 10is preferably ,slightly larger than the diameter of the axle C.`Threaded onto the bushing 1 0 is the main nut 14, having a pocket onits inner face for receiving a comparatively thin leather washer l5. Inthis construction it will be noted that the inside diameter of the mainnut 14 is slightly larger than the body portion of the axle O. Ve regardthis as an especially important feature of our construction, becausethis permits the main nut 14 to be screwed IOO back over the end of thebody portion of the axle, allowing a tightening up of the Wheel evenwhen the barrel portion of the hub has been Worn at its ends, so as t0render the same considerably shorter than the body-portion section ofthe axle. Threaded onto the section 12 of the bushing 10 is a lock-nut16 for holding the main nut 14 in its adjusted position.

As shown most clearly in Figs. 3 and 4, the body portions of the nuts 14and 16 are preferably hexagonal, so that they may be turned by anordinary carriage-wrench, and the engaging faces of said nuts arepreferably knurled or provided with ridges for locking the ends morefirmly together when tightened together. By means of this constructionit Will be seen that we have provided a simple and eiicient constructionfor tightening a carriage-wheel Without the necessity of rewashering thesame, and as the main nut 14 can be threaded back over the body portionof the axle C we have provided a construction by means of which narrowhubs or hubs the ends of which are more or less worn may be used inconnection with comparatively thin washers.

We are aware that changes may be made in practicing the invention bythose who are skilled in the art without departing from the u scopethereof as expressed in the claims. We do not wish, therefore, to belimited to the construction We have herein shown and described; but

What we do claim, and desire to secure by Letters Patent of the UnitedStates, is-

In a construction of the class described, the combination of an axle, abushing having interior screw-threads tting onto the threaded end of theaxle and having oppositely-inclined exteriorly-threaded sections 12 and13 having a reduced wrench-section 11, a stop-nut 16 which can beapplied or removed over the Wrench-section 11, and a main nut 14 holdinga leather washer in place and having an inside diameter greater than thediameter of the body portion of the axle, so that it may be turned backover the same, substantially as described.

In testimony whereof we have hereunto set our hands in the presence oftwo subscribing witnesses.

NAPOLEON TEBO. THEODORE B. FRENCH.

Witnesses:

LoUIs W. SOUTHGATE, HERBERT L. PUTNAM.

